edwalt's - Things I Wish I'd known about SBS 2003....
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Please visit the link for additional information and screen-shots.... Thanks Clive!!!!!!!!!
In an aid to specifically resolve the issue http://support.microsoft.com/kb/936481/en-us (The installation of System Center Essentials 2007 fails during the Reporting part of Setup and the following information is logged: "The specified domain does not exist or cannot be contacted") in which the whole installation of System Center Essentials 2007 will roll back (fail), and to allow address several other top issues (see below), a hotfix rollup package has been released and is available here http://www.microsoft.com/downloads/details.aspx?FamilyID=c9f977e4-d26f-4038-88b7-b70b13aa8e3d&DisplayLang=en
What specifically this rollup package fixes:
More information on the rollup package will be available shortly in the form of a KB article which, when available (I'll post an update here), will be on http://support.microsoft.com/943111/en-us
Does the hotfix rollup apply to you?
If you already have Essentials installed this hotfix rollup does not apply to you.
If you already have Essentials installed and you experience the symptoms referred to in KB936339 or KB937467 please refer to those KB articles on how to obtain the hotfixes separately so that you can apply them in your environment.
If you currently don't have Essentials installed and believe you will be affected by symptoms referred to in KB936481, KB936339 or KB937467 then this rollup package can certainly help you.
Also for those users registering to download the 90-day evaluation version here http://technet.microsoft.com/en-us/bb738028.aspx , the English downloads (aka US English) include a download of the rollup.